CN102701076B - Control device and control method for six-degree-of-freedom lifting cooperative parallel-flexible-cable equipment - Google Patents
Control device and control method for six-degree-of-freedom lifting cooperative parallel-flexible-cable equipment Download PDFInfo
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Abstract
The invention relates to a control device and a control method for six-degree-of-freedom lifting cooperative parallel-flexible-cable equipment, belonging to a lifting control device and a lifting control method. The device comprises lifting cooperative parallel-flexible-cable equipment, a main industrial control computer, a measurement industrial control computer, a communication device, a programmable logic controller, sensors and lifting equipment controllers. The main industrial control computer is connected with the programmable logic controller through the communication device. The programmable logic controller is connected with the lifting equipment controllers. Lifting equipment is connected with an object to be lifted through lifting hooks. The sensors are installed on the object to be lifted and are connected with the measurement industrial control computer. The measurement industrial control computer is connected with the main industrial control computer through the communication device. The control device and the control method for the six-degree-of-freedom lifting cooperative parallel-flexible-cable equipment have the advantages that three groups of lifting equipment controllers can be controlled to realize six-degree-of-freedom high-accuracy lifting motion; the system response speed is fast, the information processing capacity is strong and the reliability is high; and the tension of flexible cables can be monitored, the obstacle avoidance and the impact prevention during movement of the object to be lifted can be realized and the movement flexibility, stability and accuracy are improved.
Description
Technical field
the present invention relates to a kind of hoisting and hanging control setup and method, six degree of freedom hoisting and hanging cooperation flexible cable parallel architecture equipment control device and method.
Background technology
Crane hoisting equipment is the important tool that factory, railway, harbour and other departments realize material carrying machine.Be subject in recent years world economy rapid growth and world commerce ripple effect, be handled upside down material device towards scale, heavily loaded large scale development, lifting environment is increasingly severe, complicated, simultaneously also more and more higher to the requirement of hoisting and hanging technology and hanging device.But owing to being subject to the restriction of the aspect such as the coordination ability and load-carrying capacity, separate unit weight-lifting equipment can not meet current requirement completely.Many weight-lifting equipment cooperation lifting operations are the operation tasks that changed material by the long coordination of each weight-lifting equipment control flexible cable rope, can make up well the restriction of the separate unit weight-lifting equipment coordination ability and load-carrying capacity, the similar parallel institution of equipment operation operating feature, therefore can be counted as a kind of spatial cooperation flexible cable parallel architecture equipment.
Space six degree of freedom hoisting and hanging cooperation flexible cable parallel architecture equipment has important using value, the especially lifting of the main equipment assembly in airport, road and bridge etc. are built field.But this cooperation flexible cable parallel architecture change system has large inertia, multiinput-multioutput, the feature such as non-linear, and be subject to the impact of the external interference such as parameter perturbation and weight on the go RANDOM WIND of system model, make in cooperating process, object of which movement alerting ability, stability and particularity are perfect not enough.
Summary of the invention
The object of the invention is to provide a kind of six degree of freedom hoisting and hanging cooperation flexible cable parallel architecture equipment control device and method, solve in many hoisting and hanging machinery cooperating processes the problem that object of which movement alerting ability, stability and particularity are perfect not enough.
The object of the present invention is achieved like this: this six degree of freedom hoisting and hanging cooperation flexible cable parallel architecture equipment control device, comprise hoisting and hanging cooperation flexible cable parallel architecture equipment, master control industrial computer, measure industrial computer, communicator, programmable logic controller (PLC), sensor and weight-lifting equipment controller, master control industrial computer is connected with programmable logic controller (PLC) by communicator, programmable logic controller (PLC) is connected with each weight-lifting equipment controller, each weight-lifting equipment is connected with lifting object by suspension hook, sensor is installed on lifting object, sensor is connected with measurement industrial computer, measuring industrial computer is connected with master control industrial computer by communicator.
Described weight-lifting equipment controller has three groups, each group structure is identical, comprise weight-lifting equipment control circuit, photoelectric encoder, the mouth of programmable logic controller (PLC) is connected with weight-lifting equipment control circuit, and the mouth of photoelectric encoder is connected with the input end of programmable logic controller (PLC); Described weight-lifting equipment control circuit comprises lift control circuit, revolution control circuit, luffing control circuit and extension and contraction control circuit.
Described sensor comprises photoelectric encoder, grating displacement sensor, Gravity accelerometer, force transducer, LOAD CELLS and proximity transducer; Photoelectric encoder has multiple, is arranged on respectively on the motor of hoisting circuit, rotary loop of each weight-lifting equipment; Grating displacement sensor has multiple, is arranged on respectively on the oil cylinder in luffing loop and flexible loop; 3 grating displacement sensors and 1 three axle Gravity accelerometer are installed on lifting object, and LOAD CELLS is arranged on lifting object, proximity transducer is installed on lifting object simultaneously, an identical force transducer of each installation in three flexible cables.
Described control method comprises the steps:
1, when hoisting and hanging cooperation flexible cable parallel architecture equipment hoisting object is moved, be arranged on grating displacement sensor, three axle Gravity accelerometers, LOAD CELLS and proximity transducer on lifting object, and the force transducer of installing in three flexible cables, the data that record are sent to measurement industrial computer;
2, measure the real-time manipulate measurement data of industrial computer and by communicator, take off data sent to master control industrial computer;
3, master control industrial computer carries out analyzing and processing to the received signal, finishing man-machine interaction function and hoisting and hanging cooperation flexible cable parallel architecture equipment Mechanics Calculation, control system is resolved, and obtains control command, and control command sends programmable logic controller (PLC) to by communicator; The photoelectric encoder being arranged on the motor of hoisting circuit, rotary loop records corner and tach signal, programmable logic controller (PLC) is processed this signal, and constant to guarantee hydraulic motor rotary speed with the electrohydraulic proportional velocity regulating valve interface formation speed feedback control of controlling hydraulic motor rotary speed; The grating displacement sensor being arranged on the hydraulic actuating cylinder in luffing loop, flexible loop records displacement and speed signal, programmable logic controller (PLC) is processed this signal, and forms speed feedback control to guarantee that hydraulic cylinder speed is constant with the electrohydraulic proportional velocity regulating valve interface of controlling hydraulic cylinder speed;
4, programmable logic controller (PLC) is analyzed the control command of accepting, calculate control signal, respectively signal is sent to each weight-lifting equipment lift control circuit, revolution control circuit, luffing control circuit and extension and contraction control circuit, complete that three weight-lifting equipments of real-time control turn round, luffing, flexible coordination and three flexible cables carry out rope closing and put rope coordination, and then the high-precision motion of implementation space six degree of freedom hoisting and hanging cooperation flexible cable parallel architecture equipment;
5, between master control industrial computer, programmable logic controller (PLC), measurement industrial computer, communicate in universal serial bus mode, form a communications network system.
Beneficial effect: owing to having adopted such scheme, can implementation space six degree of freedom hoisting and hanging cooperation flexible cable parallel architecture equipment control device; Space six degree of freedom hoisting and hanging cooperation flexible cable parallel architecture equipment control device adopts distributed frame, by operational administrative level master control industrial computer, lifting object controlled stage programmable logic controller (PLC), and the measurement industrial computer, weight-lifting equipment controller, communicator of being responsible for measuring in real time and carry out feedback signal form, this master mode combines that programmable logic controller (PLC) controls precision is high, antijamming capability strong, good reliability and the open degree of industrial computer is high, information processing capability is adjusted advantages by force, in real time, commonality is good feature; To measure the measuring system centered by industrial computer, the mode that adopts data acquisition to combine with sensor, completes the overall process of test job to greatest extent, can realize the detection to signal, can carry out analyzing and processing to obtained signal again; Can also determine the flexible rope tension of hoisting and hanging cooperation flexible cable parallel architecture equipment, the weight of lifting object by force transducer, LOAD CELLS and proximity transducer, and keeping away barrier and preventing from impacting to realize flexible output movement for lifting object motion; Thereby can improve hoisting and hanging cooperation flexible cable parallel architecture equipment kinematic dexterity, stability and particularity, reach object of the present invention.
Advantage: this space six degree of freedom hoisting and hanging cooperation flexible cable parallel architecture equipment control device and method can effectively be controlled three groups of weight-lifting equipment controllers and realize the high-precision motion that hoisting and hanging cooperation flexible cable parallel architecture is equipped space six degree of freedom; Adopt by master control industrial computer, measure the distributed master mode that industrial computer, programmable logic controller (PLC) and communicator forms, have that system response is quick, information processing capability by force, good reliability; In system, adopt force transducer, LOAD CELLS and proximity transducer can monitor the weight of flexible rope tension, contained lifting object, and the keeping away barrier and prevent from impacting of lifting object motion, thereby kinematic dexterity, stability and the particularity of hoisting and hanging cooperation flexible cable parallel architecture equipment are greatly improved.
Accompanying drawing explanation
Fig. 1 is space of the present invention six degree of freedom hoisting and hanging cooperation flexible cable parallel architecture equipment control device schematic block diagram.
Fig. 2 is space of the present invention six degree of freedom hoisting and hanging cooperation flexible cable parallel architecture equipment control method general flow chart.
Fig. 3 is space of the present invention six degree of freedom hoisting and hanging cooperation flexible cable parallel architecture equipment figure.
The specific embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated: the present embodiment is implemented under take technical solution of the present invention as prerequisite, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment 1: this six degree of freedom hoisting and hanging cooperation flexible cable parallel architecture equipment control device, comprise hoisting and hanging cooperation flexible cable parallel architecture equipment, master control industrial computer, measure industrial computer, communicator, programmable logic controller (PLC), sensor and weight-lifting equipment controller, master control industrial computer is connected with programmable logic controller (PLC) by communicator, programmable logic controller (PLC) is connected with each weight-lifting equipment controller, each weight-lifting equipment is connected with lifting object by suspension hook, sensor is installed on lifting object, sensor is connected with measurement industrial computer, measuring industrial computer is connected with master control industrial computer by communicator.
Described weight-lifting equipment controller has three groups, each group structure is identical, comprise weight-lifting equipment control circuit, photoelectric encoder, grating displacement sensor, the mouth of programmable logic controller (PLC) is connected with weight-lifting equipment control circuit, and photoelectric encoder and the mouth of grating displacement sensor and the input end of programmable logic controller (PLC) are connected; Described weight-lifting equipment control circuit comprises lift control circuit, revolution control circuit, luffing control circuit and extension and contraction control circuit.
Described sensor comprises photoelectric encoder, grating displacement sensor, Gravity accelerometer, force transducer, LOAD CELLS and proximity transducer; Photoelectric encoder has multiple, is arranged on respectively on the motor of hoisting circuit, rotary loop of each weight-lifting equipment; Grating displacement sensor has multiple, is arranged on respectively on the oil cylinder in luffing loop and flexible loop; 3 grating displacement sensors and 1 three axle Gravity accelerometer are installed on lifting object, and LOAD CELLS is arranged on lifting object, proximity transducer is installed on lifting object simultaneously, an identical force transducer of each installation in three flexible cables.
Described control method comprises the steps:
1, when hoisting and hanging cooperation flexible cable parallel architecture equipment hoisting object is moved, be arranged on grating displacement sensor, three axle Gravity accelerometers, LOAD CELLS and proximity transducer on lifting object, and the force transducer of installing in three flexible cables, the data that record are sent to measurement industrial computer;
2, measure the real-time manipulate measurement data of industrial computer and by communicator, take off data sent to master control industrial computer;
3, master control industrial computer carries out analyzing and processing to the received signal, finishing man-machine interaction function and hoisting and hanging cooperation flexible cable parallel architecture equipment Mechanics Calculation, control system is resolved, and obtains control command, and control command sends programmable logic controller (PLC) to by communicator; The photoelectric encoder being arranged on the motor of hoisting circuit, rotary loop records corner and tach signal, programmable logic controller (PLC) is processed this signal, and constant to guarantee hydraulic motor rotary speed with the electrohydraulic proportional velocity regulating valve interface formation speed feedback control of controlling hydraulic motor rotary speed; The grating displacement sensor being arranged on the hydraulic actuating cylinder in luffing loop, flexible loop records displacement and speed signal, programmable logic controller (PLC) is processed this signal, and forms speed feedback control to guarantee that hydraulic cylinder speed is constant with the electrohydraulic proportional velocity regulating valve interface of controlling hydraulic cylinder speed;
4, programmable logic controller (PLC) is analyzed the control command of accepting, calculate control signal, respectively signal is sent to each weight-lifting equipment lift control circuit, revolution control circuit, luffing control circuit and extension and contraction control circuit, complete that three weight-lifting equipments of real-time control turn round, luffing, flexible coordination and three flexible cables carry out rope closing and put rope coordination, and then the high-precision motion of implementation space six degree of freedom hoisting and hanging cooperation flexible cable parallel architecture equipment;
5, between master control industrial computer, programmable logic controller (PLC), measurement industrial computer, communicate in universal serial bus mode, form a communications network system.
Described communicator selects private communication RS-232/RS-485 conv for the communication between master control industrial computer, programmable logic controller (PLC) and measurement industrial computer.Described master control industrial computer is responsible for hoisting and hanging cooperation flexible cable parallel architecture change system trajectory planning, man-machine interaction, system maintenance, many-sided functions such as the preservation of data, processing, demonstration, optimization.Described programmable logic controller (PLC) is responsible for the hoisting of three weight-lifting equipments, revolution, luffing and expanding-contracting action and is coordinated to control.Collection, processing, running state information that described measurement industrial computer is responsible for take off data are sent to master control industrial computer in real time, between master control industrial computer, measurement industrial computer and programmable logic controller (PLC), adopt isa bus to be connected, download and operating data transmission for setting, the program of equipment.
Described sensor records hoisting and hanging cooperation flexible cable parallel architecture and equips required signal, and pass the signal to measurement industrial computer, measure the real-time manipulate measurement data of industrial computer and by communicator, take off data sent to master control industrial computer, master control industrial computer carries out analyzing and processing to the received signal, formation control instruction sends programmable logic controller (PLC) to by communicator, programmable logic controller (PLC) is analyzed control command, control each weight-lifting equipment action of each weight-lifting equipment controller coordinate, realize and coordinate hoisting object motion, an and then large closed loop transmittance process of formation.
Described space six degree of freedom hoisting and hanging cooperation flexible cable parallel architecture equipment control method, when the motion of hoisting and hanging cooperation flexible cable parallel architecture equipment hoisting object, be arranged on grating displacement sensor, three axle Gravity accelerometers, LOAD CELLS and proximity transducer on lifting object, and the force transducer of installing in three flexible cables, all the sensors is the signal recording, and desired signal is sent to measurement industrial computer; Measure the real-time manipulate measurement data of industrial computer and by communicator, take off data sent to master control industrial computer; Master control industrial computer carries out analyzing and processing finishing man-machine interaction function, hoisting and hanging cooperation flexible cable parallel architecture equipment Mechanics Calculation to the received signal, and control system is resolved, and formation control instruction sends programmable logic controller (PLC) to by communicator; Programmable logic controller (PLC) is also accepted to record hydraulic actuating cylinder displacement and speed signal from the corner that records HM Hydraulic Motor with the photoelectric encoder that each weight-lifting equipment hoists, rotary loop HM Hydraulic Motor matches with the grating displacement sensor that tach signal and luffing, flexible loop liquid hydraulic actuating cylinder match, and forms position feedback control with the photoelectric encoder interface that feeds back to programmable logic controller (PLC); And constant to guarantee HM Hydraulic Motor and hydraulic cylinder speed with the electrohydraulic proportional velocity regulating valve interface formation speed feedback control of controlling HM Hydraulic Motor and hydraulic cylinder speed.
Programmable logic controller (PLC) is analyzed the control command of accepting, calculate control signal, respectively signal is sent to each weight-lifting equipment hoists, revolution, luffing and extension and contraction control circuit, complete that three weight-lifting equipments of real-time control turn round, luffing, flexible coordination and three flexible cables carry out rope closing and put rope coordination, and then the high-precision motion of implementation space six degree of freedom hoisting and hanging cooperation flexible cable parallel architecture equipment; Between master control industrial computer, programmable logic controller (PLC), measurement industrial computer, communicate in universal serial bus mode, form a communications network system.
Claims (1)
1. a six degree of freedom hoisting and hanging cooperation flexible cable parallel architecture equipment control device: comprise hoisting and hanging cooperation flexible cable parallel architecture equipment, it is characterized in that: also comprise master control industrial computer, measure industrial computer, communicator, programmable logic controller (PLC), sensor and weight-lifting equipment controller, master control industrial computer is connected with programmable logic controller (PLC) by communicator, programmable logic controller (PLC) is connected with each weight-lifting equipment controller, each weight-lifting equipment is connected with lifting object by suspension hook, sensor is installed on lifting object, sensor is connected with measurement industrial computer, measuring industrial computer is connected with master control industrial computer by communicator.
Described weight-lifting equipment controller has three groups, each group structure is identical, comprise weight-lifting equipment control circuit, photoelectric encoder, grating displacement sensor, the mouth of programmable logic controller (PLC) is connected with weight-lifting equipment control circuit, and photoelectric encoder and the mouth of grating displacement sensor and the input end of programmable logic controller (PLC) are connected; Described weight-lifting equipment control circuit comprises lift control circuit, revolution control circuit, luffing control circuit and extension and contraction control circuit.
Described sensor comprises photoelectric encoder, grating displacement sensor, Gravity accelerometer, force transducer, LOAD CELLS and proximity transducer; Photoelectric encoder has multiple, is arranged on respectively on the motor of hoisting circuit, rotary loop of each weight-lifting equipment; Grating displacement sensor has multiple, is arranged on respectively on the oil cylinder in luffing loop and flexible loop; 3 grating displacement sensors and 1 three axle Gravity accelerometer are installed on lifting object, and LOAD CELLS is arranged on lifting object, proximity transducer is installed on lifting object simultaneously, an identical force transducer of each installation in three flexible cables.
2
.right to use requires a six degree of freedom hoisting and hanging cooperation flexible cable parallel architecture equipment control method for device described in 1, it is characterized in that: comprise the steps:
(1) when, hoisting and hanging cooperation flexible cable parallel architecture equipment hoisting object is moved, be arranged on grating displacement sensor, three axle Gravity accelerometers, LOAD CELLS and proximity transducer on lifting object, and the force transducer of installing in three flexible cables, the data that record are sent to measurement industrial computer;
(2), measure the real-time manipulate measurement data of industrial computer and by communicator, take off data sent to master control industrial computer;
(3), master control industrial computer carries out analyzing and processing to the received signal, finishing man-machine interaction function and hoisting and hanging cooperation flexible cable parallel architecture equipment Mechanics Calculation, control system is resolved, and obtains control command, and control command sends programmable logic controller (PLC) to by communicator; The photoelectric encoder being arranged on the motor of hoisting circuit, rotary loop records corner and tach signal, programmable logic controller (PLC) is processed this signal, and constant to guarantee hydraulic motor rotary speed with the electrohydraulic proportional velocity regulating valve interface formation speed feedback control of controlling hydraulic motor rotary speed; The grating displacement sensor being arranged on the hydraulic actuating cylinder in luffing loop, flexible loop records displacement and speed signal, programmable logic controller (PLC) is processed this signal, and forms speed feedback control to guarantee that hydraulic cylinder speed is constant with the electrohydraulic proportional velocity regulating valve interface of controlling hydraulic cylinder speed;
(4), programmable logic controller (PLC) is analyzed the control command of accepting, calculate control signal, respectively signal is sent to each weight-lifting equipment lift control circuit, revolution control circuit, luffing control circuit and extension and contraction control circuit, complete that three weight-lifting equipments of real-time control turn round, luffing, flexible coordination and three flexible cables carry out rope closing and put rope coordination, and then the high-precision motion of implementation space six degree of freedom hoisting and hanging cooperation flexible cable parallel architecture equipment;
(5), communicate in universal serial bus mode between master control industrial computer, programmable logic controller (PLC), measurement industrial computer, form a communications network system.
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CN103231989B (en) * | 2013-03-13 | 2015-06-17 | 中国矿业大学 | Real-time fault monitoring system and method for hoisting cooperative flexible cable parallel configuration equipment |
CN108427346B (en) * | 2018-04-02 | 2020-04-28 | 广州大学 | Assembled structure hoist and mount control management system |
CN113766418B (en) * | 2021-08-31 | 2022-07-15 | 中国矿业大学 | Attitude self-correction underground transportation equipment based on UWB technology and control method thereof |
CN117142353B (en) * | 2023-10-31 | 2024-01-09 | 大连华锐重工集团股份有限公司 | Full-automatic overturn control method for nuclear island main equipment |
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